Just-in-time

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Supply Chain Planning. Explanação de Just-in-time philosophy de Taiichi Ohno. ('70)

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Just-in-Time

Que é Just-in-Time? Definição

Just-in-time foi aberto caminho por Taiichi Ohno em Japão nas plantas de conjunto do carro de Toyota no princípio dos anos 70. É uma filosofia da organização da manufatura.  O desperdício das diminuições do JIT fornecendo parte somente quando o processo de conjunto os requer. No coração do JIT encontra-se a kanban, a palavra japonesa para o cartão. Este cartão kanban está emitido ao armazém para pedir uma quantidade padrão das peças concoante que eles foram usados acima no conjunto/processo de manufatura. O JIT requer a precisão, porque as peças direitas devem chegar “just-in-time” na posição direita (estação de trabalho na linha de conjunto). É usado primeiramente para processos de manufatura repetitivos high-volume do fluxo.


História de Just-in-time

Historicamente, a filosofia do JIT levantou-se fora outras de duas coisas:

  1. Desejo de Japão para melhorar sua qualidade da produção. Naquele tempo, as companhias japonesas tiveram uma reputação má até a qualidade da manufatura e a manufatura do carro no detalhe foi concernida.
  2. Kaizen, também um método japonês da melhoria contínua.

O framework Just-in-time considera inventários como uma desculpa pobre para o planeamento mau, o inflexibility, a maquinaria errada, os problemas da qualidade, etc. O objetivo do JIT é apressar-se acima da resposta do cliente ao minimizar inventories ao mesmo tempo. Os inventários ajudam responder rapidamente às demandas de cliente em mudança, mas custam inevitàvel o dinheiro e aumentam o capital de funcionamento needed.


Em James 1990 Womack escreveu um livro chame “a máquina que mudou o mundo”, introduzindo a terminologia “Lean Manufacturing”. Também você pode encontrar a palavra: “Lean Production”. Os princípios atrás destes abordagens não diferem substancialmente das técnicas desenvolvidas por Ohno em Toyota.


Áreas da atenção de Just-in-time

As áreas típicas da atenção de execuções do JIT incluem:

  • Redução do inventário.
  • Lotes da produção e tamanhos de grupo menores.
  • Controle de qualidade.
  • Redução e transparência da complexidade.
  • Estrutura e delegation lisos de organização.
  • Minimization Waste.

Just-in-time prolongado externo

Com a chegada do software do Internet e do Supply Chain Planning, as companhias têm na manufatura Just-in-time estendida ínterim fora das beiras da companhia. Exijindo de seus fornecedores entregar o inventário à fábrica somente quando necessitar para o conjunto, fazendo a manufatura do JIT, requisitando e os processos da entrega mesmo mais speedier, mais flexíveis e mais eficientes. Nesta maneira, Integrated Supply Networks (redes da demanda) ou Electronic Supply Chains estão sendo dados forma.


Fórum de Just-in-time
  List of Barriers to Just-in-Time | Barriers to JIT
Though JIT as a theoretical concept seems superb, there are practical barriers in getting this concept to work in reality and get JIT implemented properly. Let's create a complete a list of all those barriers to act as a reference for those wanting t...
     
 
  Single Minute Exchange of Dies
Dear reader, I am currently working on a Single Minute Exchange of Dies (SMED) project in a beer production facility.
To implement SMED, I need to determine the baseline on which processes are done now during the changeover. I wanted to FILM thi...
     
 
  Customer Support in Just in Time is Needed
I think for implementing Just-In-Time, the customer must support it with firm and better forecasting, co-operative and committed for inwarding supplies as per the issued schedules. Else we will get sandwiched between performance and customer r...
     
 
  Can Just-in-Time Work Without Kanban?
Just-in-Time is a basic philosophy or a paradigm. If you read about it, you still have no idea HOW to do it.

Kanban however gives a practical way to achieve Just-in-Time. As Taiichi Ohno says:”Kanban, in essence, becomes the autono...
     
 
  The Principles of Lean
Lean works on certain principles:
1. Identify customer specific value (customer requirements);
2. Value stream mapping for the process (identify process);
3. Create flow (reduce cycle time);
4. Eliminate waste and non-value-added ...
     
 
  Classification of Lean Tools
Can you briefly explain how to classify lean tools?
I mean: different people seem to classify Lean tools in different ways, for example according to the 8 wastes. Who can give me another way to clas...
     
 
  Just-in-time Needs Flexibility
Of course, Just-in-time needs a flexible manufacturing system.
But actually, this flexibility has several aspects. For a proper functioning JIT-system, flexibility is required towards:
* Changes in product demand: the process ...
     
 
  How to Reduce the Vendor Risks with Just-in-Time ?
When we execute JIT, we normally require our vendor to prepare some stock to deliver fast.
If there are design change requests, or other products updates, how to reduce vendor stock risk?...
     
 
  The Impact of JIT on the Organization of Production Planning
JIT will have a strong impact on your organization of production planning.
With JIT, a factory should operate in a company similar as the autonomic nervous system in the human body. For example the human body will take care of our heartbeat and ...
     
 
  Why is a Sustainable Business Approach Capable of Removing So Much Inefficiency after years of JIT?
I had a very interesting conversation with someone who has become recently Chief Sustainability Officer of a top 10 pharma company (after years as global head of engineering there).
He is using a  
   
 
  Experiences with Including Purchased Parts in Kanban
Taiichi Ohno was plant manager of a Toyota factory when he started experimenting with JIT, Kanban and other Lean tools. This is one of his stories:
‘ … we used Kanban in select areas only and the purchased parts were the very last to be p...
     
 
  Just-in-time: Problematic or Possible?
Just-in-time (JIT) has always been a troublesome part of the management of any supply chain. However, it is feasible if the parties have a better understanding of their respective roles and the value each must bring to the chain.
Managing a supp...
     
 
  Definition of Just-in-time
JIT can be considered as:
1. A way of life
2. A philosophy of continuous improvement
3. A way to achieve manufacturing excellence by continually eliminating waste....
     
 
  Poka Yoke - Explanation
Poka Yoke is a method that shapes the production process the way it gets almost impossible to make mistakes. Employees have to make improvements in the process and needs to come up with proposals on how to prevent all the mistakes. The process has to...
     
 
  Information Velocity
Why is information velocity important in supply chain management?...
     
 
  Importance of Inventory Velocity
Why is inventory velocity so important in supply chain management?...
     
 
  Lean Manufacturing Tools for Beginners
Could somebody tell me what are the most important lean tools and techniques that should be used in a company that are about to implement lean manufacturing for the first time? Why? Thank you for your suggestions....
     
 
  JIT is Playground for Big Companies
I think that JIT or zero inventory or any system aiming similar targets needs power to execute. There are three cushions against delivery time variability.
1. Stock
2. Extra capacity
3. Unhappy customers
Big companies may p...
     
 
  JIT in Variable Marketplaces
In trying to implement a JIT system within my organisation. We are finding difficulties due to the random flows we are seeing. This random flow of products is making it hard to establish optimal stock levels.
With optimal stock levels establishe...
     
 

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Melhores Práticas - Just-in-time Premium
  Combining JIT and Outsourcing
JIT and outsourcing go hand in hand.
On one side it seems contradictory. JIT stands for producing and delivering to the customer what he wants when he wants. This is an extreme challenging condition. So you would expect that we should not furthe...
     
 
  Assumptions of Just-in-time (JIT)
Assumptions for effective JIT:
1. It depends on the type of product a company is manufacturing. JIT works best in food (perishable) business, fashion but can also be applied in cars manufacturing like in Toyota.
2. Deep buyer-supplier relat...
     
 

Expert Tips (ENG) - Just-in-time Premium
 

Main Advantages of JIT?

Among the main causes for the success of Just-in-time are its capabilities to deal with certain major economic trends:
a. Deal with decrea...
Usage (application): Benefits of Just-in-time
 
 
 

Lean Tools to Attack Waste

What lean tools you can use for every waste you can find at your company?
Before you try to implement these lean tools you have to train your ass...
Usage (application): Waste Management, Waste Tools Overview
 
 
 

7 Things to Avoid in Just-in-Time

The seven zeros or seven areas of wastes in JIT / Lean Thinking are:
- Zero Defects: To avoid delays due to defects
- Zero (Excess) Lot Siz...
Usage (application): Just-in-Time Pitfalls
 
 
 

Use of Andon as Part of Just-in-time

Just-in-time is a pull-system. That means that when the customer places his order, the machine starts rolling.
Of course the whole organiz...
Usage (application): Signaling Abnormalities
 
 
 

The 8 Wastes of Lean Explained

T - Transport - Moving people, products & information
I - Inventory - Storing parts, pieces, documentation ahead of requirements
M - Motion ...
Usage (application): Waste Management
 
 
 

Standard Work in Just-in-Time

A just-in-time organization has to be capable to function 100% reliable when ‘pulled’ by the customer.
To achieve this readiness the organ...
Usage (application): Just-in-Time
 
 
 

Operation Management Issues and Focus Areas

According to Heizer and Render, there are 10 decision areas of Operation Management (each having typical issues):
1. Goods and Services De...
Usage (application): Operations Management, JIT, Kaizen
 
 
 

How to Focus your Improvement Efforts?

Very often organizations consider continuous improvement as committing on improvement efforts, and thus creating projects to implement them, in all ar...
Usage (application): Achieve More With Less, Kaizen, BPR, JIT, Lean, Value Chain
 
 
 

Synonyms of Just-in-time (JIT)

Instead of JIT, you may also find the following similar terms:
- Continuous Flow Manufacturing (IBM)
- Stockless Production (HP)
- Repe...
Usage (application): Other Terms that are used to Indicate JIT
 
 
 

JIT II

The term JIT II has been applied as co-location and is a further step toward reducing unnecessary logistics times and costs and exploring further oppo...
Usage (application): JIT with supplier
 
 
 

Obtaining a High Supplier Quality

W. Edward Deming, a well-known management consultant, strongly recommended Sole (Single) Sourcing as the only management way to obtain high supplier q...
Usage (application): Best Practice to Consider
 
 

Recursos - Just-in-time Premium
 

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Compare com: Kaizen  |  Deming Cycle  |  Scientific Management  |  Six Sigma  |  Value Chain  |  Value Stream Mapping  |  CPFR  |  Bricks and Clicks  |  Delta Model  |  3o Logística do partido (3PL)  |  Tecnologia de RFID


Retorne a o centro de a gerência: Mudança e Organização  |  Cadeia de Fornecimento e Qualidade


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